CN103738918A - Solar energy methane reforming reactor based on photo-thermal cooperative utilization - Google Patents
Solar energy methane reforming reactor based on photo-thermal cooperative utilization Download PDFInfo
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- CN103738918A CN103738918A CN201310742774.7A CN201310742774A CN103738918A CN 103738918 A CN103738918 A CN 103738918A CN 201310742774 A CN201310742774 A CN 201310742774A CN 103738918 A CN103738918 A CN 103738918A
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Abstract
The invention relates to a solar energy methane reforming reactor based on photo-thermal cooperative utilization, and belongs to the field of solar energy chemical energy storage and methane catalytic reforming. The reactor comprises a quartz socket tube reactor, a light beam reactor, a heating furnace, a temperature controller, a thermocouple and the like. The problem that the solar energy is only used as hot source, but cannot be used as light wave to directly act on catalyst and reaction gas in methane reforming reaction for energy storage through solar energy is solved. The solar energy methane reforming reactor can be used as both photocatalysis and thermocatalysis. A light beam generator is adopted for simulating sunlight to provide energy for photocatalysis and thermocatalysis, the sleeve type quartz tube reactor is used for preheating and reaction of integral catalyst and raw material gas, the open-close type heating furnace, the thermocouple and the temperature controller are used as a supporting temperature maintaining and controlling device for the quartz tube reactor, so as to control the temperature of the reaction point accurately. Due to the photo-thermal synergistic effect of the novel integral catalyst, the methane and carbon dioxide can be efficiently reformed so as to convert into synthesis gas.
Description
Technical field
The present invention relates to a kind of sun power methane reforming reaction device based on the collaborative utilization of photo-thermal, belong to the association areas such as sun power chemistry accumulation of energy and methyl hydride catalyzed reformation.
Background technology
For methane reforming reaction, from calculation of thermodynamics, when temperature reaches more than 600 ℃, just there is synthetic gas to generate, and raise with temperature of reaction, reaction-ure conversion-age increases, and synthetic gas yield also improves.Its high endothermic character makes industrial production energy consumption very high, but this characteristic can be used to store the high temperature waste hot of sun power, nuclear energy and industry.Sun power is the renewable energy source that resource is very abundant.But it has with geographic location, weather condition to change shortcoming greatly.In order to expand the scope of utilizing of sun power, must first assemble sun power and be transformed into the long-term form of preserving and carrying at a distance that is suitable for.Utilize solar heating methane reforming reaction producing synthesis gas, reaction converts solar energy into the chemical energy of fuel, and reacted product calorific value is promoted, and makes sun power be converted into the form of easy storage and utilization simultaneously, has solved the instability problem of sun power.Sun power methane reforming reaction institute producing synthesis gas can pass through the long-range conveying of pipeline, then releases energy through reversible thermopositive reaction, thereby realizes conversion, storage and the conveying of energy.So sun power methane reforming reaction is the effective way that develops sun power, simultaneously also significant to reducing greenhouse gas emission.
And in sun power methane reforming reaction, promote the reactor that this calorific value adopts and be generally traditional tubular reactor.Reactor is the key part of realizing sun power methane reforming with carbon dioxide.The design of reactor has determined that sun power provides the efficiency of conversion of the form of energy, the transformation efficiency of methane and energy.Most of research at present all concentrates on using sun power as single source utilization.Its reactor adopting is single heat catalysis device, and in this single heat catalysis device, the sun is direct heating catalyzer and reactant gases not, and first heat energy absorbed by nontransparent reactor wall, and then be transferred to catalyzer.Owing to having thermal resistance between catalyst layer and wall, and the thermal conductivity of catalyzer is low and heat flux is restricted, and catalyzer can not get enough heats, thereby causes the transformation efficiency of methane and carbon dioxide lower, and the energy storage efficiency of sun power is lower.And sun power is luminous energy in essence, radiation spectrum comprises 7% ultraviolet ray, 47% visible ray and 46% infrared rays, sun power methane reforming is when carrying out heat catalysis, if sun power direct radiation catalyzer and reactant gases also may cause that light-catalyzed reaction is improved reaction efficiency.In methane reforming reaction, conventionally adopt and there is highly active precious metal as catalyzer, if consider light promoting catalysis, can develop the metal oxide that can replace precious metal and there is highly active cheapness or mixture as catalyzer.
Summary of the invention
The present invention seeks to solve at existing sun power methane reforming reaction device, sun power is only as thermal source utilization, and can not directly act on catalyzer and reactant gases is used with light wave, cause all lower problems of methane reforming transformation efficiency and solar energy storage efficiency.The invention provides a kind of reactor that not only can carry out photochemical catalysis but also can carry out heat catalysis.
In order to achieve the above object, the technical solution used in the present invention is as follows:
Based on the collaborative sun power methane reforming reaction device utilizing of photo-thermal, it is characterized in that: this device comprises gas-solid quartz tube reactor, light-beam generator, process furnace, temperature controller and thermopair; Quartz tube reactor is positioned in the Miniature tube type process furnace of open-close type; Quartz tube reactor is designed to telescopic reactor, by inner and outer tubes, formed, and one end holding integrated formula catalyzer of inner tube, inside and outside two pipe junctions are designed to frosted mouth;
Quartz tube reactor outer tube two ends are provided with two place's arms, are respectively bottom manifold and top arm; Bottom manifold is used for placing thermopair, and pipe end adopts rubber plug to seal assurance resistance to air loss; Top arm is the inlet pipe of mixing raw material gas, and the bottom manifold of quartz tube reactor is positioned over the aperture place that is reserved in process furnace opening and closing place, and this arm is used for placing thermopair; The end of thermopair, through the bottom manifold of silica tube, is positioned over integral catalyzer place, directly measures the temperature of reflecting point, by connecting temperature controller, temperature of reaction is accurately controlled; Light-beam generator adopts xenon lamp simulated solar irradiation, by metal reflective mirror, focuses on silica tube bottom integrated catalyzer lay down location.
Further, the medullary ray of quartz tube reactor and the medullary ray of process furnace burner hearth and focusing center's point of light-beam generator are all on same medullary ray.
Accompanying drawing explanation
Fig. 1 is the schematic diagram based on the collaborative sun power methane reforming reaction device utilizing of photo-thermal
Fig. 2 is the schematic diagram of the silica tube reaction in reactor
Fig. 3 is the schematic diagram of the process furnace of open-close type
Fig. 4 is LaFeO
3(3%)-Al
2o
3(10%)/AISI316 integral catalyzer have light and unglazed under methane conversion
Fig. 5 is LaFeO
3(3%)-Al
2o
3(10%) H of/AISI316 integral catalyzer
2the ratio of/CO
Embodiment
Quartz tube reactor is telescopic reactor, inner and outer tubes, consists of, and this design is mainly used in the installation and removal of integral catalyzer.Inside and outside two pipe junctions are designed to frosted mouth, are mainly the resistance to air loss that guarantees reactor, prevent from leaking gas in reaction process.The bottom design of inner tube is the disk of diameter 20mm, and for holding integrated formula catalyzer, inner tube is whole is together with pipe, for the discharge of synthetic gas after reforming reaction.Air outlet end caliber is designed to diameter 6mm, is convenient to connect gas piping, and the parts of connection outlet end are the adapters of diameter 6mm～3mm, and connecting pipeline adopts the plastics tubing of diameter 3mm to connect.Silica tube outer tube has two place's arms, and bottom manifold is used for placing thermopair, and pipe end adopts rubber plug to seal the resistance to air loss that guarantees reactor.Top arm is the inlet pipe of mixing raw material gas, and two arms are designed to apart from each other, and this design can also have a well-mixed process after making gas enter quartz tube reactor, makes unstripped gas than (CH
4: CO
2) more close to 1:1.
Quartz tube reactor is positioned in the tubular oven of open-close type.Be designed to open-close type and be convenient to the dismounting of reactor.In opening and closing place, apart from 60mm place, bottom, open the aperture of a diameter 10mm, aperture is for placing the bottom manifold of quartz tube reactor, and the top arm of quartz tube reactor is near stove outside.
The end of thermopair, through the bottom manifold of silica tube, is positioned over integral catalyzer place.The temperature of reflecting point can be directly measured in this design, and by connecting temperature controller, temperature of reaction is accurately controlled.
The medullary ray of the medullary ray of quartz tube reactor and process furnace burner hearth and focusing center's point of light-beam generator are all on same medullary ray.Light-beam generator adopts xenon lamp simulated solar irradiation, by accurate precious metal reflective mirror, focuses on silica tube bottom integrated catalyzer lay down location, and the round spot size after focusing is diameter 20mm.Thereby can directly act on integral catalyzer and reactant gases.
The present invention is applicable to sun power methane reforming, and embodiment is tested with the sun power methane reforming under the normal pressure of laboratory.With reference to Fig. 1, connect whole reactor, with the CH of purity 99.999%
4cO with purity 99.999%
2as reactant gases, measure to calculate its 600 ℃, 700 ℃, 800 ℃, during 900 ℃ of temperature spots, methane conversion when simulated solar light direct beam and non-direct projection and H
2the ratio of/CO.Specific embodiments is as follows:
By LaFeO
3(3%)-Al
2o
3(10%)/AISI316 integral catalyzer is seated in silica tube bottom integrated formula catalyzer lay down location, and inlet mouth passes into through the mixed unstripped gas (CH of mixing tank
4: CO
2=1:1), connect other all pipelines leak detection, guarantee without heating up after gas leakage.Open light-beam generator xenon lamp analog solar, open-close type process furnace provides a stable temperature environment and its to have the effect of insulation.Utilize K type thermopair to control respectively temperature at 600 ℃, 700 ℃, 800 ℃, 900 ℃ these temperature spots, carry out reforming reaction after stablizing 30min.
Processing condition: raw gas flow is 10ml/min, temperature of reaction is controlled at 600 ℃, 700 ℃, 800 ℃, 900 ℃ these temperature spots, carries out reforming reaction after stablizing 30min.
Reaction result: under the condition of xenon lamp simulated solar irradiation, methane conversion at each temperature spot all higher than the transformation efficiency under single heat catalysis.Fig. 4 and Fig. 5 are the test result figure of this example.
Claims (2)
1. based on the collaborative sun power methane reforming reaction device utilizing of photo-thermal, it is characterized in that: this device comprises gas-solid quartz tube reactor, light-beam generator, process furnace, temperature controller and thermopair; Quartz tube reactor is positioned in the Miniature tube type process furnace of open-close type; Quartz tube reactor is designed to telescopic reactor, by inner and outer tubes, formed, and one end holding integrated formula catalyzer of inner tube, inside and outside two pipe junctions are designed to frosted mouth;
Quartz tube reactor outer tube two ends are provided with two place's arms, are respectively bottom manifold and top arm; Bottom manifold is used for placing thermopair, and pipe end adopts rubber plug to seal assurance resistance to air loss; Top arm is the inlet pipe of mixing raw material gas, and the bottom manifold of quartz tube reactor is positioned over the aperture place that is reserved in process furnace opening and closing place, and this arm is used for placing thermopair; The end of thermopair, through the bottom manifold of silica tube, is positioned over integral catalyzer place, directly measures the temperature of reflecting point, by connecting temperature controller, temperature of reaction is accurately controlled; Light-beam generator adopts xenon lamp simulated solar irradiation, by metal reflective mirror, focuses on silica tube bottom integrated catalyzer lay down location.
2. according to claim 1 based on the collaborative sun power methane reforming reaction device utilizing of photo-thermal, it is characterized in that the medullary ray of quartz tube reactor and the medullary ray of process furnace burner hearth and focusing center's point of light-beam generator are all on same medullary ray.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737442A (en) * | 2018-12-29 | 2019-05-10 | 袁明磊 | A kind of boiler coal feeding system using solar energy |
| CN110016365A (en) * | 2019-04-02 | 2019-07-16 | 东南大学 | A kind of device and method of biomass coke tar reforming preparing synthetic gas |
| CN111111669A (en) * | 2019-12-31 | 2020-05-08 | 西安交通大学 | Medium-high temperature methane dry reforming mesoporous photo-thermal catalyst and preparation method and application thereof |
| CN111437689A (en) * | 2020-04-01 | 2020-07-24 | 华中科技大学 | Double-channel high-temperature photo-thermal catalytic reaction device |
| CN111450654A (en) * | 2020-04-01 | 2020-07-28 | 华中科技大学 | Double-channel high-pressure photo-thermal catalytic reaction device |
| CN112934144A (en) * | 2019-11-26 | 2021-06-11 | 中国科学院大连化学物理研究所 | Top-illuminated casing photo-thermal reactor and application |
| CN113603057A (en) * | 2021-08-13 | 2021-11-05 | 太原理工大学 | Device and method for preparing synthesis gas by reforming methane/carbon dioxide by using solar energy |
| CN113620242A (en) * | 2021-08-18 | 2021-11-09 | 西安交通大学 | Gas-transmission type methane/carbon dioxide photo-thermal coupling dry reforming reactor with replaceable catalyst lining plate and using method |
| CN113620243A (en) * | 2021-08-24 | 2021-11-09 | 西安交通大学 | Solar optothermal coupling utilization system and method suitable for dry reforming reaction of methane |
| CN113683055A (en) * | 2021-08-27 | 2021-11-23 | 西安交通大学 | Series-type concurrent heating and regenerative heating combined photo-thermal coupling methane/carbon dioxide dry reforming system and method based on same |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737442B (en) * | 2018-12-29 | 2020-06-05 | 林浩 | Boiler coal feeding system utilizing solar energy |
| CN109737442A (en) * | 2018-12-29 | 2019-05-10 | 袁明磊 | A kind of boiler coal feeding system using solar energy |
| CN110016365A (en) * | 2019-04-02 | 2019-07-16 | 东南大学 | A kind of device and method of biomass coke tar reforming preparing synthetic gas |
| CN112934144A (en) * | 2019-11-26 | 2021-06-11 | 中国科学院大连化学物理研究所 | Top-illuminated casing photo-thermal reactor and application |
| CN111111669A (en) * | 2019-12-31 | 2020-05-08 | 西安交通大学 | Medium-high temperature methane dry reforming mesoporous photo-thermal catalyst and preparation method and application thereof |
| CN111437689A (en) * | 2020-04-01 | 2020-07-24 | 华中科技大学 | Double-channel high-temperature photo-thermal catalytic reaction device |
| CN111450654A (en) * | 2020-04-01 | 2020-07-28 | 华中科技大学 | Double-channel high-pressure photo-thermal catalytic reaction device |
| CN113603057A (en) * | 2021-08-13 | 2021-11-05 | 太原理工大学 | Device and method for preparing synthesis gas by reforming methane/carbon dioxide by using solar energy |
| CN113620242A (en) * | 2021-08-18 | 2021-11-09 | 西安交通大学 | Gas-transmission type methane/carbon dioxide photo-thermal coupling dry reforming reactor with replaceable catalyst lining plate and using method |
| CN113620242B (en) * | 2021-08-18 | 2024-03-29 | 西安交通大学 | Methane/carbon dioxide photo-thermal coupling dry reforming reactor with gas permeation type replaceable catalyst lining plate and use method |
| CN113620243A (en) * | 2021-08-24 | 2021-11-09 | 西安交通大学 | Solar optothermal coupling utilization system and method suitable for dry reforming reaction of methane |
| CN113620243B (en) * | 2021-08-24 | 2024-01-12 | 西安交通大学 | Solar photo-thermal coupling utilization system and method suitable for methane dry reforming reaction |
| CN113683055A (en) * | 2021-08-27 | 2021-11-23 | 西安交通大学 | Series-type concurrent heating and regenerative heating combined photo-thermal coupling methane/carbon dioxide dry reforming system and method based on same |
| CN113683055B (en) * | 2021-08-27 | 2024-01-12 | 西安交通大学 | Photo-thermal coupling methane/carbon dioxide dry reforming system combining series type heat supplement and heat regeneration and method based on photo-thermal coupling methane/carbon dioxide dry reforming system |
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Application publication date: 20140423 |